*{
  margin: 0;
  padding: 0;
}
html,body{
  height: 100%;
  
}
/* 导航部分 */
.nav{
  height: 100px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  padding: 0 100px;
}
.nav .logo{
  width: 150px;
  font-weight: bold;
  font-size: 26px;
  color: #fff;
}
.nav .logo img{
  width: 100%;
}

.nav .nav-title{
  display: flex;
  list-style: none;
  width: 300px;
  justify-content: space-around;
  font-weight: bold;
}
.nav .nav-title li{
  cursor: pointer;
}
.nav .nav-title li a{
  color: #fff;
  text-decoration: none;
}
.nav .nav-title .active{
  border-bottom: 3px solid hsla(0,0%,100%,.5);
  padding-bottom: 10px;
}

/* 版权 */
.footer{
  height: 100px;
  padding: 10px 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}
.footer ul{
  padding: 10px 0;
  display: flex;
  width: 60%;
  justify-content: space-around;
  list-style: none;
}
.footer ul li a{
  cursor: pointer;
  color: #fff;
  text-decoration: none;
}
.footer p{
  color: #f4f4f4;
  font-size: 12px;
}